Radix complement refers to the complement of a number with respect to a particular base. The term radix, in this context, refers to the number base. Synonyms for the term radix complement include diminished radix complement, diminished radix complement representation, radix complement arithmetic, and base complement representation. These synonyms are commonly used in computer science and mathematics. The radix complement of a number can be calculated by subtracting the number from the base raised to the power of the number of digits, minus one. Understanding these synonyms is essential in computing and programming as they are frequently used when working with different number bases.